Roof Cleaning

What are those unsightly black marks on your roof?

If you’ve been watching those black streaks grow from the gutters up, they’ didn’t appear overnight. They’ve been slowly working their way into your roof for years.

The cause of the streaks is an algae-like substance called Gloeocapsa Magma. This bacteria has been spreading like wildfire due to rising temperatures and humidity. Furthermore, shingles are now being produced with limestone, which the bacteria feeds on.

Gloeocapsa Magma can also spread to parts of your roof that are not cleaned properly. While partial cleaning is a temporary solution to make the roof look better, it doesn’t have long-lasting benefits. Those black streaks don’t just look bad -they’re eating your roof!

What you can expect from Superior Pressure Washing:

Safety is our absolute top priority, for our technicians and your home

Dark stain removal and growth eliminated

Professionally trained staff in uniforms, delivering the service with branded trucks and company equipment (no subcontractors!)

Soft washing to protect your home. We will never use high pressure on a roof, even if asked. If we can’t clean it with low pressure – we just won’t clean it. We protect our customers with this commitment.

Expectations that are always met and almost always exceeded.

Take Curb Appeal To A Whole New Level

Our Cleaning Procedures

All roof cleaning is completed with a two-person team. One technician is on the ground and the other is on the roof. Here’s how it works:

Upon arrival, we situate hoses and prepare your property to safeguard your landscaping and personal belongings. We always douse affected surfaces in water, but also move lawn furniture, lawn decorations and cover fragile plants such as Japanese Maple trees and Roses as needed

We place one or more ladders around the home using ladder stand offs to protect gutters. Large, heavy-duty trash bags are fixed to the bottom of the downspouts to catch any solution run off.

Finally, all furniture will be returned to proper place and a final rinse of plants will be conducted. Contractor bags will be collected and disposed of correctly.

Why don’t we just pressure wash your roof?

This is the #1 question we get from homeowners, real estate agents, and property managers. The answer is easy: It’s very unsafe for our technicians due to the wet slippery conditions and strong jolt of the pressure washer, but it’s also very unsafe for your home.

Fiberglass-based asphalt shingles are manufactured with material composed entirely of glass fibers of varying lengths and orientations. This fiberglass base is then surfaced with a specially-formulated asphalt coating, followed by weather-resistant mineral granules. When you or a contractor get up on the roof and pressure wash to remove those ugly black streaks more harm is being done than good. The high pressure from the washer:

Removes the weather resistant mineral granules as well as some of the asphalt coating.

Triggers irreversible damage that often requires roof replacement

Take this example in the pre-cleaning photo to the left: Even after we cleaned the roof correctly, you can still see the pressure washing marks very clearly. Unfortunately the customers who own this roof initially paid more for another company to come in and pressure wash the roof. After the company damaged it, our team came in and used soft washing to clean it correctly.

Will our methods kill the lawn and landscaping?

Our methods will not kill your plants and lawn because we take every precaution to protect them. Between using tarps, drop cloths, and plenty of water, we protect your landscaping every step of the way.

Will roof cleaning protect my insurance policy?

Insurance companies and home inspectors are finally realizing how important roof cleaning is to the quality of a home. Many insurance companies are even canceling policies due to dirty roofs.

"I think this is the most professional looking staff! They always impress!"

"We have used Superior Pressure Wash multiple times to power wash our house, driveway and deck, and have been super pleased every time. They always go above and beyond and their prices are fair."

Our Pressure Washing Services

Roof Washing

Roof Washing

We excel at removing black streaks from your shingles! Our soft wash system eliminates lichen, mold, moss, and dirt from your roof. The result: Shingles that are as long-lasting as they are curb appeal ready.

House Washing

House Washing

We utilize a soft washing solution to remove dirt and grime from your siding. This low pressure washing approach is the best way to bring the shine to your exterior, and it guarantees that ‘like new’ result for your home.

Gutter Cleaning

Gutter Cleaning

Our team uses a hot water cleaning method to make sure that your gutters are ready for any weather. We provide complete debris removal, clear clogs, & deliver minor maintenance to keep your home protected day in & day out.

Commercial Cleaning

Commercial Cleaning

We are your professional source for pressure washing buildings & concrete. Using hot water pressure washing technology, our technicians work with property managers & commercial sites to create a clean, safe space to do business.

Window Cleaning

Window Cleaning

Our professionals bring a streak-free result to your interior and exterior windows. Offering both a water-fed pole and traditional cleaning system, we bring a customized clean to your panes, screens, sills, and frames.

Cleaning and maintaining rooves on multi-unit residential buildings, such as apartment complexes, condos, and HOAs, will attract more potential tenants to your properties. Keeping your roofs clean will also improve the satisfaction levels of your current tenants and encourage them to sign up for future leases. Carrying out proper roof maintenance in time for spring,…

Dark stains and long, mysterious streaks. Moss, algae, and the telltale clusters of mold. A poorly maintained roof has a way of looking dire – and it’s not a huge surprise that the nasty appearance tricks many homeowners into thinking it’s time for a replacement. But! This is one of the few cases of property…

Your roof can sometimes get relegated to “afterthought” territory. There are a thousand and one other property maintenance needs to consider, after all – and roof cleaning doesn’t always make it to the top of the list. But consider this a plea to reconsider roof cleaning on your list of priorities. The maintenance of your…

Our client’s property was in a battle between curb appeal and a dirty roof. And the dirty roof was winning. Black streaks have a way of taking over a property. When your roof is bogged down by dirt and grime, the effect impact the rest of your home. And the result can be downright uninspiring.…

Have you been ignoring your roof? There’s no reason to feel ashamed if the answer is “yes” – it often drops to the bottom of a home maintenance checklist. But a pressure washing service is one of the best ways that you can preserve your roofing for up to a decade longer. To put it…

Look up! You might be surprised by what you see. Our home’s roofing bears the brunt of the elements wear and tear – and without proper maintenance, these factors can take a toll on its appearance. Reclaim your property’s curb appeal and secure your roof’s long life… And let Superior Pressure Washing do the work!…

Have you noticed black stains streaking across the surface of your roof? This not-so-subtle sign is your home’s version of a cry for help. Periodic maintenance is essential to keep your biggest investment beautiful and long-lasting. If you can’t remember the last time your home was treated to a roof cleaning service, then it’s likely…

How Much Do You Appreciate Your Roof? Our roofs have a tough lot in life. Rarely do we look at a house and exclaim “What a lovely roof you have!” – Instead, we’re focused on the architecture, the siding, the windows, and the landscaping. Roofs might be the function that keeps us dry and warm,…

Streamline your property maintenance plan with Superior Pressure Washing. We serve our neighbors in Silver Spring and the surrounding Maryland area with pressure washing solutions that lock in the value of your home or business. With a complete suite of services that include house washing, window cleaning, concrete cleaning, and more, we protect quality and…

Roof Cleaning Olney MD – FAQ Q. What are the stains actually up on your roof? Most people will tell you its all from the trees, possibly from planes, leaf stains but all of these assumptions are wrong. The ugly black streaks are actually a blue-green algae known as Gloeocapsa Magma that is spread…